Cultivator.



H. PETERSEN.

CULTIVATOR.

APPLICATION FILED FEB. 20. m4.

1,1 61,964. Patent-ed Nov. 30, 1915.

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H. PETERSEN.

CULTIVATOR.

APPLICATION FILED FEB. 20. I914.

Patented Nov. 30, 1915.

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H. PETERSEN.

CULTIVATOR.

APPLICATION FILED FEB. 20. 1914.

Patentd Nov. 30, 1915.

3 SHEETSSHEET 3- q/Vivtmeowo ANoGRAl-M C0,. WASHINGTON. n. c.

rap srarnsrarnnronrron HENRY PETERSEN, 0F MO'QNT AUBURNyIOWA.

CULTIVATOR.

To all whom it may concern:

Be it known that I, HENRY PETERSEN, a citizen of the'llnited States of America, and resident of Mount Auburn, in the county of Benton and State of Iowa, have invented certain new and useful Improvements in Cultivators, of which the following is a specification. j i

This invention relates to certain new and useful improvements in cultivators and is designed more especially as an improvement upon the construction shown in my patent #1,08 l,291, issued January 13, 191 1.

The present invention has for its objects among others to provide a simplified construction, to cheapen the manufacture and to dispense with parts shown in connection with the mast in my prior patent, thus employing fewer parts requiring less material.

and enabling me to manufacture the device much easierthan heretofore.

T abandon the mast stop cushioning spring of the prior patent and also the'mast stop acting in conjunction with said cushioning spring and provide the toothed segment with a projection which serves as a mast stop, being so disposed as to act upon the main spring which tensions themast. As the mast is thrown rearward, this projection or toe is brought upward against the spring to be put under tension, thus not only causing the mast to come to a stop, but serving also as a cushion therefor. The parts are so arranged that the effect of the projection or toe on the spring is gradually applied.

Other objects and advantages of the invention will hereinafter appear and the novel features thereof will be particularly pointed out in the appended claims;

The invention is capable of embodiment in a variety of forms, some only of which I have chosen to herein illustrate. The invention as embodied in such forms is clearly illustrated in the accompanying drawings, which, with the numerals of reference marked thereon, form a part of this specification, and in which Figure 1 is a side elevation showing my improvement as applied toa cultivator, such portions only of the latter as are necessary to a clear understanding of my present improvements being shown. Fig. 2 is a similar view with the parts in the position they assume when the mast and main lever are I Specification of Letters Patent. Patgnted NO 119 Application filed February 20, 191%. Serial No. 819,956. l

thrown forward. Fig. 3 is a perspective view of the mast in one of its embodiments. gig. l. similar view of a modified form. mg. 5 1s a perspectiveview of still another form ofthe invention. Fig. 6 is a front elevation on a smaller scale of the form shown in Fig. 3.

parts throughout the several views.

Referring to the drawings, 1 designates the main frame, 2 the crank axle, 3 the gang frame, a the'pe'ndulum bar, and 5 the main operating-lever, all of which, together with the other parts of the implement, maybe of the form shown in my prior patent above referred to, or'of any other well known or aplnke numerals of reference indicate like proved form of construction, the present imi provement residing solely in the mast and its appurtenances. 4

As before stated, the present improvement is capable of embodiment in a variety of forms and uponreference to Fig. 3 there .will be seen a mast 6 which is mounted in the present instance upon a cross bar 7 connecting the side bars of the frame, the pivot 8'of said mast being above and substantially in alinement vertically with the axle. This pivot 8 is mounted in the ears 9 on a casting or bracket 10 secured to said cross bar, or it may be mounted in any other convenient way. The lower end of the mast is bifurcated,as seen in Fig. 3, the bifurcations 11 receiving the pivot and being disposed adjacent to the ears 9 so as to prevent lateral movement or undue swinging of the mast in a direction parallel with the pivot.

12 is a spring actuated pawl carried by the rod 13 and designed to beoperated by the lever 14 which is mounted at the upper end of the mast, as shown. This pawl is designed for cooperation with a toothed segment 15 mounted upon the pivot 8 and provided with lateral projections or lugs 16 and 17 to limit the mast in its backward and forward movements. It is to be understood that the mast and segment are locked by means of this pawl so as to move together as one in moving the gangs up or: down. If it be desired to change the depth of penetration of the earth-engaging implements into the g ound, the pawl is disengaged from the segment and the segment adjusted or moved on its pivot in one-direction or the-other, according to whether it is desired to raise or lower the gangs, and the pawl then engaged in the appropriate notch in the segment, when the mast and segment will agaln move together.

v18 is a spring disposed about the pivot 8 and having a portion 19 acting on the lower portion of the geared segment, as seen at, the proper point of the segment in ac cordance with the desired depth of penetration of the earth-engaging elements.

20 is a spring for carrying the weight of the gang and the mast and for holding the mee n pesit en wit the a g rai ed. It i to be understood that this spring is at all times und r te s m he ension f h spring, however, heing varied, -that is increased when the mast is thrown rearward. This spring is attached at one end, as at 21, any sui ab e m nne o the main fr me 1 n t oth r e d i es gned in act upon the mast. The mode of connectiono this other end of the spring var es in accordance wi h t e ifie e fo m of mbodimen o the invention. For 1nstance,, n Fig. 3 I

h v hown a elevie 2 pi etally mounted,

a t t0 e ppesite sid e he m andin this instance the rear end of the p ing i conn ct d, as a h he, fer-' va -d ad of e cross ba of th s ele i This clevis extends forward a sufficient distance to permit of the necessary movements of the toothed segment, which, as'will be seen, is disposed within the bifurcation of the lower end of the mast. In this form the forward end of the clevis is provided with a projection 25 designed to engage the under side of the spring, as seen in said Fig. 3, providing a long bearing for the spring, this projection having its upper surface. con vex to lessenthesuddenness of application of tension to the spring and to preventinjury to the spring byincreasing the points of hearing or support of the spring on said projection. In this form the toothed segment is providedwith a forwardprojectio'n 26, which, when the mast is moved-rearward, contacts wth the under side of the projection 25 to force the same up into engagement with the spring.

With the parts constructed and arranged substantially as hereinbefore described, "the operation, which, it is thought, will be clearly understood, is-hriefiy stated, as follows.

Assuming the parts to be in the position in which they are shown in Fig. 2, the gangs raised and the projection 25 out of engagement with thespring, and the pawl 12 in proper engagement with the segment, now as the mast is moved rearward into the position indicated in Fig. 1, the segment and mast move together andthe projection 26 on in Fig 8 with the exception that the pawl has double extension 28 so as to engage in the notches'of both sides of the toothed seg ment', it being noted that the mast is movable betw en said si e b nd is li t in one direction by the cross portion 29 which connects said side bars at the rear and in the other direction by the lug or the like 30 projecting inwardly from the side of the segment. In this form. the spring '20, is connected to the clevis 31 pivotally mounted see th me t, a at .2- In this fo h teethed Seg n s Plmid d ith a wardly projecting lip 38 which extends beyond the ele i and engage he under side ofthe spring to pnt the same under tension when the .mast is thrown rearward. The uppe a e Qt hi e s CQDV e the same purpose as the convexity of the proieetien 2 n he e e i i the t m Shewn n Fig? 3- n th fo a Spring 34: is provided a ou he p vot .8 and Hangman t ee hed s gm t n he s me manner as he spring 18 in the formshown in Fig. 3, except in this form the cross portion of the spring bears against the rear face ofthe ma inst ad of up n th r t e of the toothed segment. The operation, however, is substantially the same as with the form shown in Fig. 3 and above described.

In Fig. 51 hav shown ano h r form in which the single toothed segment 36 is pivotally mounted upon the pivot 8 in the same manner asbefore, except that itis reversed as to positiom'that is its free end extends from the rear forwardly instead of from the front reainvardly, as in Fig. 3,. The mast 6 is provided with the spring actuated pawl 12'connected by rod 13 with an opera ing lever as in the other forms and the toothed segment is provided with stop lugs 3'37 and 38,150 limit the relative movement of the mast and'toothed segment. A spring 39, atfixed about the pivot 8 and having its cross portion 40, hearing on the segment36 and its ends 4-1 bearing against the mast serves the same function as the spring in Figs. 3 and 4: previously described.- The front portion of the toothed segment has a forwardly and'upwardly extending lip. or the like 42 spring 20 and put the same under increased tension when the mast 6 is moved to the rear, the result being the same as in the operation of the parts shown in Figs. 3 and I. It will be noted that in this form of embodiment oftheinvention the rear end of the spring 20 is attached directly to the mast,.as seen at as in Fig. 5, and the lip 42 is ofiset, as at a l, so as to be brou ht into proper position to engage the under side of thespring to put it under tension.

In some cases it may be desirable to omit the lip on the clevis, where the clevis is employed, and allow the projection on the toothed segment to contact with the clevis for-putting the spring 20 under tension, the resultbeing the same as in the different forms of construction hereinbefore specifically describec. 7

From the above it will be seen that I'have devised a simplified and cheaper form of construction than that illustrated in my prior patent hereinbefore referred to, and while the structural embodiments of the invention as herein disclosed are what I at the presenttime consider preferable, .it is evident that the same is subject tochanges, variations and modifications in detail, proportion of parts etc., without departing from the spirit of the invention or sacrificing any of its advantages. I, therefore, do not intend to restrict myself to the exact" construction hereinbefore disclosed. but reserve the right to make such changes, variations and modifications in detail as come properly within the scope of the protection prayed. I

What is claimed as new is 1. In a wheeled implement, a spring-com trolled mast pivotally mounted above the axle thereof, a toothed segment pivotally mounted on the pivot of the mast, and means carried by the mast cooperable with said segment to hold the mast and segment in adjusted relation, said segment constructed to put the spring under tension.

2. In a wheeled implement, a spring controlled mast pivotally mounted above the axle, a segment pivotally mountedon the pivot of the mast for movement independent of said mast, and means carried by the mast cooperable with said segment to hold the mast and segment in adjusted relation, and means movable with the segment to put the spring under tension. 7

3. In a wheeled implement, a mast pivotally mounted above the axle, a spring acting thereon to move it in one direction, a pivotally mounted member movable with the mast, means carried by the mast cooperable with said member to hold the mast and member in adjusted relation, said member adapted to apply tension directly to the under side of said spring when the mast is moved.

-4- Inawheeled implement, a spring controlled mast pivotallyf'rnounted above the axle, a toothed segment pivotally mounted on the pivot of the mast for movement by. and also independent of the mast, means carried by'the mast cooperable with said segment to cause themast and segment to move together, and means whereby the segment is moved on its pivot when said mast and segment are disconnected.

In a wheeled implement, a mast pivotally mounted above the axle, a spring acting on the mast, a toothed segment pivotally mounted for movement by and independent of'the mast, means for holding said segment for movementwith the mast," and means movable with the mast and engageablebeneath the spring to put the same under tension. w l a I 6. In a' wheeled implement, a mast pivotally mounted above the axle a spring acting on the mast a toothed'segment pivotally mounted for movement independent of the mast means for holding said segment for movement with the mast, a second spring for moving said toothed segmentin one direction when disconnected from the mast, and means movable with the mast and engageable beneath the first-named spring to put the same under tension.

' 7. In a wheeledimplement, a pivotally mounted mast, a toothed segment mounted on the pivot of the mast for movement therewith, or independently thereof, a spring acting on the mast, a clevis pivotally connected with the mast, and means movable with the clevis 'to apply pressure directly beneath the spring.

8. In a wheeled implement, a pivotally mounted mast, a spring acting thereon, a toothed segment mounted on the pivot of the mast, for movementtherewith a clevis pivotally mounted on the mast and having a projecting lip for direct engagement with said spring, and means on the segment for engagement with said lip.

9. In a wheeled implement, a pivotally mounted mast, a spring acting thereon, a toothed segment mounted on the pivot of the mast, for movement therewith a clevis pivotally mounted on the mast and having a projecting lip for direct engagement with said spring, and means on the segment for. engagement with said lip, said lip having a convex upper face.

10. In a wheeled implement, a pivoted axle, a mast pivotally mounted above the pivot of the axle, a spring acting on said mast, a pivotally mounted toothed segment adapted to put said spring under tension, and means carried by the mast cooperable with said segment to hold the mast and segment in adjusted relation.

11. In a wheeled implement, a pivoted' axle, a mast pivotally mounted above the pivot 'of the axle substantial vertical ahnement therewith, a sprlng actlng on the I mast, a toothed segment pivotally mounted on the pivot of the mast for movement in'de pendent of the latter, and means adapted to directly putsaid spring under tension when the mast 1s moved.

, axle, a mast pivotally mounted above the pivot of theraxle with the pivots of said axle and mast substantially in vertical alinement, a spring acting on the mast'to move it in one direction, apivotally mounted member movableiby and with the mast, and means movable with saidmember to apply tension directly men; under side of said spring when the mast is moved.

1a. Ina wheeled implement a pivoted axle, amast p votally mounted above the pivot of the axle with the pivots of the mast M ss f hi Pat nt m e Q te n for and axle in substantial vertical alinement, a

, spring acting on the mast to move it in one direction, a toothed segment pivotally mounted for movement with and independent of the mast, means forcauslng the mast and segment to move together, and means for moving the segment on its pivot when said mast and segment are disconnected.

15. In a wheeled 1mplement, a pivoted axle, a mast pivotally mounted above the pivot of the axle with the pivots of the mast and axle in substantial vertical alinement, a spring acting on the mast to move it in one direction, a toothed segment pivotally mounted for movement with and independent of the mast, means on the mast cooperable with the segment for moving said mast and segment together, means movable with the mast and engageable beneath the spring to put the same under tension, and a spring acting on said segment to actuate it when the mast and segment are disconnected.

Signed by me at Washington, D. (1, this 19th day of February,191-1.

' HENRY PETERSEN. .Witnesses E. D. B. BRO N, E. H. BOND.

five cents each, by addressing the Commissioner of Patents,

Washington, C. i 

